wtf

public static int[][] readMatrixPre(int[][] matrix){
            int i=0, j=0;
            File nameFile = new File("matrizes.txt");
            Scanner toReadFile = new Scanner("matrizes.txt");
            while(toReadFile.hasNextLine()){
                i++;
                while(toReadFile.hasNextInt()){
                    j++;
                    matrix[i][j] = toReadFile.nextInt();
                }toReadFile.nextLine();
            }


            toReadFile.close();
            return matrix;
        }
        public static void writeMatrixIn(){}
        public static void showMeMyDespair(int[][] matrix){
            int i=0, j=0;
            for(i = 0; i < matrix.length-1; i++ ){
                for(j = i+1; j < matrix.length; j++){
                    out.print(matrix[i][j]);

                }
            }
        }